Pride and Prejudice sure seems to get most of the attention, but to me, it's not in the same league as Sense and Sensibility. The narrator isn't nearly as sharp, doesn't have the same wit, despite the famous opening line. Elizabeth just doesn't do it for me quite the way Eleanor does and Sense has more sweet suffering, I think.
So here is my ranking as of today:
1. Sense and Sensibility
3. Pride and Prejudice
I won't let myself read another one until next summer, so this ranking may hold for awhile.